Finding the Fourth Proportional to 20,786,040.14, 31,177,056.35 and 6,405,246.68
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Solution
The fourth proportional to 20,786,040.14, 31,177,056.35 and 6,405,246.68 is: 9,607,252.52
Step by Step Solution
- Step 1: Write the proportion equation
20,786,040.14 : 31,177,056.35 = 6,405,246.68 : x - Step 2: Convert to fraction form
20,786,040.14/31,177,056.35 = 6,405,246.68/x - Step 3: Cross multiply
20,786,040.14x = 31,177,056.35 × 6,405,246.68 - Step 4: Simplify right side
20,786,040.14x = 199,696,736,490,098.88 - Step 5: Solve for x
x = 199,696,736,490,098.88/20,786,040.14 - Step 6: Final answer
x = 9,607,252.52
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.